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tresset_1 [31]
3 years ago
7

Solve each system using elimination. 3x+3y=27 x-3y=-11

Mathematics
1 answer:
Natalija [7]3 years ago
8 0

Answer:

x=4

y=10

Step-by-step explanation:

3x +3y = 27

x - 3y = -11 (add these up so 3y will be eliminated and you'll have x only)

4x = 16

now let's eliminate x (you can put 4 instead of x though)

3x + 3y = 27

-3/ x -3y= -11 (multiple the the 2nd equation with -3 to eliminate x )

3x + 3y =27

-3x + 3y =33

6y = 60

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Use the information given to correctly complete the sentence.
IRISSAK [1]

Explanation: 54 yards is about 162 feet, and since we are converting measurements we need this ( duh ) and 135 seconds is approximately 2.25 minutes, so what we need to do is is divide the numbers like any conversion problem: 162 divided by 2.25  is 72.

Hope this answer helps!

4 0
3 years ago
The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance betw
Likurg_2 [28]
Diameter of the basketball rim = 18 inchesCircumference of the standard basketball = 30 inches
Area of circle = π r² 
Basketball rim = 3.14 * (18/2)² = 3.14 * 9² = 3.14 * 81 = 254.34 in²
Circumference of a circle = 2 π r30 = 2 * 3.14 * rr = 30 / (2*3.14) = 30 / 6.28 = 4.78 inches
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5 0
3 years ago
Read 2 more answers
1 point
harina [27]

Answer:

6 degrees Celsius

Step-by-step explanation:

It started at 2 degrees Celsius below zero. The next day, it dropped to 12 degrees Celsius below zero. The next day, it rose to 7 degrees below zero. The next day, it increased to 6 degrees ABOVE zero. -7+13=6

6 0
3 years ago
The spinner to the right contains three letters of the alphabet. What is the probability of getting exactly one A in three spins
yulyashka [42]

Answer:

the probability is 1/3 in decimal it is i think 33.33 and i percentage it is 33%

Step-by-step explanation:

6 0
2 years ago
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Which expression can be used to find the area of the
dedylja [7]

Answer:

3x²

Step-by-step explanation:

1 triangle is 1/2x²

2 triangles are x²

rectangle below is 2 squares

rectangle below is 2x²

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3 0
1 year ago
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